Meaning Of The Word Insidious - Web uk / ɪnˈsɪd.i.əs / us / ɪnˈsɪd.i.əs /. How to use insidious in a sentence. Intended to entrap or beguile. Web the meaning of insidious is having a gradual and cumulative effect : (of something unpleasant or dangerous) gradually and secretly causing. See examples of insidious used in a sentence.
See examples of insidious used in a sentence. How to use insidious in a sentence. Web the meaning of insidious is having a gradual and cumulative effect : Intended to entrap or beguile. (of something unpleasant or dangerous) gradually and secretly causing. Web uk / ɪnˈsɪd.i.əs / us / ɪnˈsɪd.i.əs /.